633464377648 has 20 divisors (see below), whose sum is σ = 1244623673808. Its totient is φ = 312271171520.

The previous prime is 633464377643. The next prime is 633464377673. The reversal of 633464377648 is 846773464336.

633464377648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (633464377643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278812411 + ... + 278814682.

Almost surely, 2^633464377648 is an apocalyptic number.

It is an amenable number.

633464377648 is a deficient number, since it is larger than the sum of its proper divisors (611159296160).

633464377648 is a wasteful number, since it uses less digits than its factorization.

633464377648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557627172 (or 557627166 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 61.

The spelling of 633464377648 in words is "six hundred thirty-three billion, four hundred sixty-four million, three hundred seventy-seven thousand, six hundred forty-eight".